CN214562626U - Runner that PVC pipe fitting mould runner weight reduces improves structure - Google Patents
Runner that PVC pipe fitting mould runner weight reduces improves structure Download PDFInfo
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- CN214562626U CN214562626U CN202022983355.0U CN202022983355U CN214562626U CN 214562626 U CN214562626 U CN 214562626U CN 202022983355 U CN202022983355 U CN 202022983355U CN 214562626 U CN214562626 U CN 214562626U
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- guide plate
- sprue
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Abstract
The utility model belongs to the technical field of the injection mold technique and specifically relates to a runner of PVC pipe fitting mould runner weight reduction improves structure is related to. The utility model provides a runner of PVC pipe fitting mould runner weight reduction improves structure, includes mould and lower mould, last mould and lower mould between be provided with the die cavity, last mould in be provided with the runner, last mould in the play liquid end intercommunication that corresponds the runner be provided with the sprue, sprue and die cavity between through the subchannel intercommunication, the lower mould on one side of corresponding the sprue be provided with guiding device, guiding device include the guide plate, the lower mould on be provided with guide plate matched with mounting groove, the guide plate on correspond the subchannel and be provided with and be used for carrying out the water conservancy diversion slope that leads to the fuse-element. The utility model discloses can guarantee the mobility of PVC fuse-element when production to can not influence the production of product, can reduce the production of runner material moreover, prevent the waste of production resource, reduce staff intensity of labour.
Description
Technical Field
The utility model belongs to the technical field of the injection mold technique and specifically relates to a runner of PVC pipe fitting mould runner weight reduction improves structure is related to.
Background
In short, the mold is a tool for manufacturing molded articles, the tool is composed of various parts, different molds are composed of different parts, in the plastic mold manufacturing industry, appearance plastic products are more and more, the requirement of the appearance plastic products is very strict, and the phenomena of joint lines, flow marks, gates and the like can not appear on the surfaces of the products, so that higher requirements are provided for the manufacturing of the plastic mold.
Polyvinyl chloride (PVC) plastic has the advantages of excellent mechanical property, acid and alkali corrosion resistance, electrical property, low price and the like, is commonly used for injection molding processing of plastic pipe fittings, and is an amorphous thermosensitive polymer, so that the melt has poor fluidity and is easy to thermally decompose in the injection molding process.
The sprue material is a runner material produced at the sprue of the injection mold, and the sprue accounts for a large proportion in the existing PVC pipe fitting mold, so that a large sprue material can be generated, production resources are wasted, the labor intensity of workers is increased, and the production cost of an enterprise is improved.
Disclosure of Invention
The utility model discloses it is relatively poor mainly to the mobility of current PVC pipe fitting mould PVC fuse-element when production, influence the production of product, and can generate great runner material, the production resource has been wasted, staff's intensity of labour has been increased, the manufacturing cost's of enterprise problem has been improved, a mobility that can guarantee the PVC fuse-element when producing is provided, thereby can not influence the production of product, and can reduce the production of runner material, prevent manufacturing resource's waste, staff intensity of labour reduces, the runner that reduces enterprise manufacturing cost's PVC pipe fitting mould runner weight reduces improves the structure.
The purpose of the utility model is mainly realized by the following scheme: the utility model provides a runner of PVC pipe fitting mould runner weight reduction improves structure, includes mould and lower mould, last mould and lower mould between be provided with the die cavity, last mould in be provided with the runner, last mould in the play liquid end intercommunication that corresponds the runner be provided with the sprue, sprue and die cavity between through the subchannel intercommunication, the lower mould on one side of corresponding the sprue be provided with guiding device, guiding device include the guide plate, the lower mould on be provided with guide plate matched with mounting groove, the guide plate on correspond the subchannel and be provided with and be used for carrying out the water conservancy diversion slope that leads to the fuse-element. The PVC melt is firstly injected into the main runner from the liquid inlet end of the sprue during production, then flows into the cavity and is molded after smoothly passing through the branch runner under the guiding action of the guide slope, the flowability is better, the material stagnation phenomenon cannot occur, the guide slope is positioned in the main runner, the proportion of the sprue material can be reduced by the design of the guide slope, the sprue material is reduced, the waste of production resources is prevented, and the labor intensity of workers is reduced, the production cost of enterprises is reduced, and the practicability is strong.
Preferably, the longitudinal section of the main flow passage is semicircular. The longitudinal section of the main runner is semicircular, and the longitudinal section of the existing main runner is generally trapezoidal, so that the gate proportion of a single-width mold can be reduced to 15% from 19% after the main runner is designed to be semicircular, and the generation of gate materials is further reduced.
Preferably, the lower die is provided with a thimble corresponding to the cavity. Be provided with the thimble corresponding with the die cavity on the lower mould, the design of thimble can make things convenient for the product after the staff ejecting shaping.
Preferably, the bottom of the guide plate is provided with a positioning column, and the lower die is provided with a positioning hole matched with the positioning column. The bottom of guide plate is provided with the reference column, is provided with the locating hole with reference column matched with on the lower mould, and the installation and the location of guide plate can be convenient for in the setting of reference column and locating hole improve the stability of whole mould.
Preferably, the cross-sectional area of the sub-runner gradually decreases towards the cavity. The cross section area of the sub-runner is gradually reduced towards the direction close to the cavity, so that the melt can flow conveniently, the sprue mark on the surface of a product can be reduced, and the product quality is improved.
Preferably, the upper surface of the flow guiding slope is arc-shaped. The upper surface of the flow guide slope is arc-shaped, so that melt can flow conveniently, and the phenomenon of material stagnation is prevented.
Preferably, the guide plate and the positioning column are integrally formed. The guide plate and the positioning column are integrally formed, so that the connection is firm, and the service life is long.
Therefore, the utility model discloses a runner that PVC pipe fitting mould runner weight reduces improves structure possesses following advantage: the utility model discloses simple structure can guarantee the mobility of PVC fuse-element when production to can not influence the production of product, can reduce the production of runner material moreover, prevent the waste of production resource, reduce staff intensity of labour, reduce the manufacturing cost of enterprise.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the middle flow guiding device of the present invention.
Fig. 3 is a schematic structural view of a longitudinal section of the main runner of the present invention.
Illustration of the drawings: 1-upper die, 2-lower die, 3-guiding device, 4-die cavity, 5-pouring gate, 6-main runner, 7-branch runner, 8-mounting groove, 9-thimble, 10-positioning hole, 11-guiding plate, 12-positioning column and 13-guiding slope.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example 1:
as shown in figures 1 and 2, a runner improvement structure for reducing the weight of a pouring gate of a PVC pipe fitting mold comprises an upper mold 1 and a lower mold 2, a cavity 4 is arranged between the upper mold 1 and the lower mold 2, the pouring gate 5 is arranged in the upper mold 1, a main runner 6 is communicated with a liquid outlet end corresponding to the pouring gate 5 in the upper mold 1, the main runner 6 is communicated with the cavity 4 through a branch runner 7, a flow guide device 3 is arranged on one side of the lower mold 2 corresponding to the main runner 6, the flow guide device 3 comprises a flow guide plate 11, an installation groove 8 matched with the flow guide plate 11 is arranged on the lower mold 2, a flow guide slope 13 for guiding a melt is arranged on the flow guide plate 11 corresponding to the branch runner 7, during production, the PVC melt is firstly injected into the main runner 6 from a liquid inlet end of the pouring gate 5, then under the guiding action of the flow guide slope 13, the PVC melt can smoothly pass through the branch runner 7 and then flow into the cavity 4 for molding, and the PVC melt has better fluidity, the material stagnation phenomenon can not appear, and water conservancy diversion slope 13 is located 6 insides of sprue, and the design of water conservancy diversion slope 13 can reduce 5 materials in the runner to reduce the production of 5 materials in the runner, prevent the waste of production resource, reduce staff intensity of labour, reduce the manufacturing cost of enterprise, the practicality is stronger.
As shown in fig. 3, the longitudinal section of the main runner 6 is semicircular, and the longitudinal section of the conventional main runner 6 is generally trapezoidal, so that the half-round design can reduce the proportion of the single mold gate 5 from 19% to 15%, and further reduce the generation of gate 5 material.
The lower die 2 is provided with a thimble 9 corresponding to the die cavity 4, and the design of the thimble 9 can facilitate the ejection of a formed product by a worker.
The bottom of guide plate 11 is provided with reference column 12, is provided with on the lower mould 2 with reference column 12 matched with locating hole 10, and the installation and the location of guide plate 11 can be convenient for in the setting of reference column 12 and locating hole 10, improve the stability of whole mould.
The cross section area of the sub-runner 7 is gradually reduced towards the direction close to the cavity 4, so that the melt can flow conveniently, the gate 5 mark on the surface of a product can be reduced, and the product quality is improved.
The upper surface of the guide slope 13 is arc-shaped, so that the melt can flow conveniently, and the phenomenon of material stagnation is prevented.
It should be understood that this example is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
Claims (7)
1. The utility model provides a runner of PVC pipe fitting mould runner weight reduction improves structure, includes mould and lower mould, last mould and lower mould between be provided with the die cavity, last mould in be provided with the runner, last mould in the play liquid end intercommunication that corresponds the runner be provided with the sprue, sprue and die cavity between through the subchannel intercommunication, a serial communication port, the lower mould on one side that corresponds the sprue be provided with guiding device, guiding device include the guide plate, the lower mould on be provided with guide plate matched with mounting groove, the guide plate on correspond the subchannel and be provided with the water conservancy diversion slope that is used for leading the fuse-element.
2. The gate-weight-reduced flow channel improvement structure of a PVC pipe mold according to claim 1, wherein the longitudinal section of the main flow channel is semicircular.
3. The gate weight reduction runner improvement structure of the PVC pipe mold according to claim 1, wherein the lower mold is provided with a thimble corresponding to the cavity.
4. The gate weight reduction runner improvement structure of the PVC pipe fitting mold according to claim 1, 2 or 3, wherein the bottom of the guide plate is provided with a positioning column, and the lower mold is provided with a positioning hole matched with the positioning column.
5. A gate-weight-reduced runner improvement structure for a PVC pipe mold according to claim 1, 2 or 3, wherein the cross-sectional area of the runner gradually decreases toward the cavity.
6. The gate-weighted flow channel improvement structure of the PVC pipe fitting mold according to claim 1, 2 or 3, wherein the upper surface of the flow guiding slope is arc-shaped.
7. The gate weight reduced flow channel improvement structure of the PVC pipe mold as claimed in claim 4, wherein the deflector and the positioning post are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022983355.0U CN214562626U (en) | 2020-12-10 | 2020-12-10 | Runner that PVC pipe fitting mould runner weight reduces improves structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022983355.0U CN214562626U (en) | 2020-12-10 | 2020-12-10 | Runner that PVC pipe fitting mould runner weight reduces improves structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214562626U true CN214562626U (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022983355.0U Active CN214562626U (en) | 2020-12-10 | 2020-12-10 | Runner that PVC pipe fitting mould runner weight reduces improves structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214562626U (en) |
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2020
- 2020-12-10 CN CN202022983355.0U patent/CN214562626U/en active Active
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